1 Meaning of Friyay
Friday is a mix between Friday and yay. People say Friday to express celebration and joy as the weekend arrives. This word is used to express pleasure about Friday, although a lot of people use this word for other days as well, such as Saturyay, Thursyay, etc. but not Monyay for apparent reasons.
2 Why do people use this slang?
This word was originated by people on social media to indicate excitement about Friday. People like celebrating this day as they work 5 days a week and they feel relaxed when the week is over and the weekend comes. Hence, they have combined Friday with yay.